Imported texture is just black?
You are connecting an all-black image with an alpha channel to a diffuse shader, and Blender won't know what to do with the transparent areas.

It will paint black in the black areas, but in the transparent areas there is no color information, so it will... paint black.

Also as far as I know TIFF images have the ability to save color information even for fully transparent areas, whereas in your case they are black, with full transparency (as can even be seen directly in the google drive link preview you provide). So if Cycles where to use the color information for those transparent pixels it would yeild... black again.

Either


Use the alpha channel to mix two colors.
Use the alpha channel to mix two different shaders.
Change your picture to a black&amp;white image instead of all black with alpha
Change your picture to have white pixels in the transparent areas